20228240

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1697}}^1$

素因数の和:1859

約数の個数: 40

約数和(自身を含む): 47374200

約数和(自身を除く): 27145960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1697, 2384, 2980, 3394, 5960, 6788, 8485, 11920, 13576, 16970, 27152, 33940, 67880, 135760, 252853, 505706, 1011412, 1264265, 2022824, 2528530, 4045648, 5057060, 10114120, 20228240]

約数ペア:

[(1, 20228240), (2, 10114120), (4, 5057060), (5, 4045648), (8, 2528530), (10, 2022824), (16, 1264265), (20, 1011412), (40, 505706), (80, 252853), (149, 135760), (298, 67880), (596, 33940), (745, 27152), (1192, 16970), (1490, 13576), (1697, 11920), (2384, 8485), (2980, 6788), (3394, 5960)]